Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | LP38843T-1.2 | LP38843 Series |
|---|---|---|
| Control Features | Enable | Enable |
| Current - Output | 3 A | 3 A |
| Current - Quiescent (Iq) | 30 µA | 30 µA |
| Current - Supply (Max) [Max] | 40 mA | 40 mA |
| Mounting Type | Through Hole | Surface Mount, Through Hole |
| Number of Regulators | 1 | 1 |
| Operating Temperature [Max] | 125 °C | 125 °C |
| Operating Temperature [Min] | -40 °C | -40 °C |
| Output Configuration | Positive | Positive |
| Output Type | 27.03 °C/W | 27.03 °C/W |
| Package / Case | TO-220-5 | TO-263BA, D2PAK (5 Leads + Tab), TO-263-6, TO-220-5 |
| Protection Features | Over Current, Short Circuit, Over Temperature | Over Current, Short Circuit, Over Temperature |
| PSRR [Max] | 80 dB | 80 dB |
| PSRR [Min] | 65 dB | 65 dB |
| Supplier Device Package | TO-220-5 | TO-263 (DDPAK-5), TO-220-5 |
| Voltage - Input (Max) [Max] | 5.5 V | 5.5 V |
| Voltage - Output (Min/Fixed) | 1.2 V | 0.8 - 1.5 V |
| Voltage Dropout (Max) [Max] | 0.5 V | 0.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
LP38843 Series
3-A, LOW-VIN (1.01-V), ULTRA-LOW-DROPOUT VOLTAGE REGULATOR WITH ENABLE
| Part | Package / Case | Control Features | Voltage - Output (Min/Fixed) | Current - Quiescent (Iq) | Output Type | Output Configuration | Current - Supply (Max) [Max] | Supplier Device Package | PSRR [Max] | PSRR [Min] | Voltage - Input (Max) [Max] | Operating Temperature [Max] | Operating Temperature [Min] | Current - Output | Number of Regulators | Mounting Type | Protection Features | Voltage Dropout (Max) [Max] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments LP38843S-1.5/NOPBThe LP38843 is a high-current, fast-response regulator which can maintain output voltage regulation with minimum input to output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: Vbias provides voltage to drive the gate of the N-MOS power transistor, while Vin is the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultra low Vin voltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.
The fast transient response of these devices makes them suitable for use in powering DSP, Microcontroller Core voltages and Switch Mode Power Supply post regulators. The parts are available in TO-220 and DDPAK/TO-263 packages.
Dropout Voltage:210 mV (typ) at 3A load current.
Quiescent Current:30 mA (typ) at full load.
Shutdown Current:30 nA (typ) whenS/Dpin is low.
Precision Output Voltage:1.5% room temperature accuracy.
The LP38843 is a high-current, fast-response regulator which can maintain output voltage regulation with minimum input to output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: Vbias provides voltage to drive the gate of the N-MOS power transistor, while Vin is the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultra low Vin voltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.
The fast transient response of these devices makes them suitable for use in powering DSP, Microcontroller Core voltages and Switch Mode Power Supply post regulators. The parts are available in TO-220 and DDPAK/TO-263 packages.
Dropout Voltage:210 mV (typ) at 3A load current.
Quiescent Current:30 mA (typ) at full load.
Shutdown Current:30 nA (typ) whenS/Dpin is low.
Precision Output Voltage:1.5% room temperature accuracy. | D2PAK (5 Leads + Tab), TO-263-6, TO-263BA | Enable | 1.5 V | 30 µA | 27.03 °C/W | Positive | 40 mA | TO-263 (DDPAK-5) | 80 dB | 65 dB | 5.5 V | 125 °C | -40 °C | 3 A | 1 | Surface Mount | Over Current, Over Temperature, Short Circuit | 0.5 V |
Texas Instruments LP38843SX-1.2/NOPBThe LP38843 is a high-current, fast-response regulator which can maintain output voltage regulation with minimum input to output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: Vbias provides voltage to drive the gate of the N-MOS power transistor, while Vin is the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultra low Vin voltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.
The fast transient response of these devices makes them suitable for use in powering DSP, Microcontroller Core voltages and Switch Mode Power Supply post regulators. The parts are available in TO-220 and DDPAK/TO-263 packages.
Dropout Voltage:210 mV (typ) at 3A load current.
Quiescent Current:30 mA (typ) at full load.
Shutdown Current:30 nA (typ) whenS/Dpin is low.
Precision Output Voltage:1.5% room temperature accuracy.
The LP38843 is a high-current, fast-response regulator which can maintain output voltage regulation with minimum input to output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: Vbias provides voltage to drive the gate of the N-MOS power transistor, while Vin is the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultra low Vin voltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.
The fast transient response of these devices makes them suitable for use in powering DSP, Microcontroller Core voltages and Switch Mode Power Supply post regulators. The parts are available in TO-220 and DDPAK/TO-263 packages.
Dropout Voltage:210 mV (typ) at 3A load current.
Quiescent Current:30 mA (typ) at full load.
Shutdown Current:30 nA (typ) whenS/Dpin is low.
Precision Output Voltage:1.5% room temperature accuracy. | D2PAK (5 Leads + Tab), TO-263-6, TO-263BA | Enable | 1.2 V | 30 µA | 27.03 °C/W | Positive | 40 mA | TO-263 (DDPAK-5) | 80 dB | 65 dB | 5.5 V | 125 °C | -40 °C | 3 A | 1 | Surface Mount | Over Current, Over Temperature, Short Circuit | 0.5 V |
Texas Instruments LP38843SX-1.5/NOPBThe LP38843 is a high-current, fast-response regulator which can maintain output voltage regulation with minimum input to output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: Vbias provides voltage to drive the gate of the N-MOS power transistor, while Vin is the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultra low Vin voltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.
The fast transient response of these devices makes them suitable for use in powering DSP, Microcontroller Core voltages and Switch Mode Power Supply post regulators. The parts are available in TO-220 and DDPAK/TO-263 packages.
Dropout Voltage:210 mV (typ) at 3A load current.
Quiescent Current:30 mA (typ) at full load.
Shutdown Current:30 nA (typ) whenS/Dpin is low.
Precision Output Voltage:1.5% room temperature accuracy.
The LP38843 is a high-current, fast-response regulator which can maintain output voltage regulation with minimum input to output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: Vbias provides voltage to drive the gate of the N-MOS power transistor, while Vin is the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultra low Vin voltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.
The fast transient response of these devices makes them suitable for use in powering DSP, Microcontroller Core voltages and Switch Mode Power Supply post regulators. The parts are available in TO-220 and DDPAK/TO-263 packages.
Dropout Voltage:210 mV (typ) at 3A load current.
Quiescent Current:30 mA (typ) at full load.
Shutdown Current:30 nA (typ) whenS/Dpin is low.
Precision Output Voltage:1.5% room temperature accuracy. | D2PAK (5 Leads + Tab), TO-263-6, TO-263BA | Enable | 1.5 V | 30 µA | 27.03 °C/W | Positive | 40 mA | TO-263 (DDPAK-5) | 80 dB | 65 dB | 5.5 V | 125 °C | -40 °C | 3 A | 1 | Surface Mount | Over Current, Over Temperature, Short Circuit | 0.5 V |
TO-220-5 | Enable | 0.8 V | 30 µA | 27.03 °C/W | Positive | 40 mA | TO-220-5 | 80 dB | 65 dB | 5.5 V | 125 °C | -40 °C | 3 A | 1 | Through Hole | Over Current, Over Temperature, Short Circuit | 0.5 V | |
TO-220-5 | Enable | 1.5 V | 30 µA | 27.03 °C/W | Positive | 40 mA | TO-220-5 | 80 dB | 65 dB | 5.5 V | 125 °C | -40 °C | 3 A | 1 | Through Hole | Over Current, Over Temperature, Short Circuit | 0.5 V | |
Texas Instruments LP38843T-1.2/NOPBThe LP38843 is a high-current, fast-response regulator which can maintain output voltage regulation with minimum input to output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: Vbias provides voltage to drive the gate of the N-MOS power transistor, while Vin is the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultra low Vin voltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.
The fast transient response of these devices makes them suitable for use in powering DSP, Microcontroller Core voltages and Switch Mode Power Supply post regulators. The parts are available in TO-220 and DDPAK/TO-263 packages.
Dropout Voltage:210 mV (typ) at 3A load current.
Quiescent Current:30 mA (typ) at full load.
Shutdown Current:30 nA (typ) whenS/Dpin is low.
Precision Output Voltage:1.5% room temperature accuracy.
The LP38843 is a high-current, fast-response regulator which can maintain output voltage regulation with minimum input to output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: Vbias provides voltage to drive the gate of the N-MOS power transistor, while Vin is the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultra low Vin voltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.
The fast transient response of these devices makes them suitable for use in powering DSP, Microcontroller Core voltages and Switch Mode Power Supply post regulators. The parts are available in TO-220 and DDPAK/TO-263 packages.
Dropout Voltage:210 mV (typ) at 3A load current.
Quiescent Current:30 mA (typ) at full load.
Shutdown Current:30 nA (typ) whenS/Dpin is low.
Precision Output Voltage:1.5% room temperature accuracy. | TO-220-5 | Enable | 1.2 V | 30 µA | 27.03 °C/W | Positive | 40 mA | TO-220-5 | 80 dB | 65 dB | 5.5 V | 125 °C | -40 °C | 3 A | 1 | Through Hole | Over Current, Over Temperature, Short Circuit | 0.5 V |
Texas Instruments LP38843S-1.2Linear Voltage Regulator IC Positive Fixed 1 Output 3A TO-263 (DDPAK-5) | D2PAK (5 Leads + Tab), TO-263-6, TO-263BA | Enable | 1.2 V | 30 µA | 27.03 °C/W | Positive | 40 mA | TO-263 (DDPAK-5) | 80 dB | 65 dB | 5.5 V | 125 °C | -40 °C | 3 A | 1 | Surface Mount | Over Current, Over Temperature, Short Circuit | 0.5 V |
Texas Instruments LP38843S-1.2/NOPBThe LP38843 is a high-current, fast-response regulator which can maintain output voltage regulation with minimum input to output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: Vbias provides voltage to drive the gate of the N-MOS power transistor, while Vin is the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultra low Vin voltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.
The fast transient response of these devices makes them suitable for use in powering DSP, Microcontroller Core voltages and Switch Mode Power Supply post regulators. The parts are available in TO-220 and DDPAK/TO-263 packages.
Dropout Voltage:210 mV (typ) at 3A load current.
Quiescent Current:30 mA (typ) at full load.
Shutdown Current:30 nA (typ) whenS/Dpin is low.
Precision Output Voltage:1.5% room temperature accuracy.
The LP38843 is a high-current, fast-response regulator which can maintain output voltage regulation with minimum input to output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: Vbias provides voltage to drive the gate of the N-MOS power transistor, while Vin is the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultra low Vin voltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.
The fast transient response of these devices makes them suitable for use in powering DSP, Microcontroller Core voltages and Switch Mode Power Supply post regulators. The parts are available in TO-220 and DDPAK/TO-263 packages.
Dropout Voltage:210 mV (typ) at 3A load current.
Quiescent Current:30 mA (typ) at full load.
Shutdown Current:30 nA (typ) whenS/Dpin is low.
Precision Output Voltage:1.5% room temperature accuracy. | D2PAK (5 Leads + Tab), TO-263-6, TO-263BA | Enable | 1.2 V | 30 µA | 27.03 °C/W | Positive | 40 mA | TO-263 (DDPAK-5) | 80 dB | 65 dB | 5.5 V | 125 °C | -40 °C | 3 A | 1 | Surface Mount | Over Current, Over Temperature, Short Circuit | 0.5 V |
TO-220-5 | Enable | 1.2 V | 30 µA | 27.03 °C/W | Positive | 40 mA | TO-220-5 | 80 dB | 65 dB | 5.5 V | 125 °C | -40 °C | 3 A | 1 | Through Hole | Over Current, Over Temperature, Short Circuit | 0.5 V | |
Texas Instruments LP38843S-1.5Linear Voltage Regulator IC Positive Fixed 1 Output 3A TO-263 (DDPAK-5) | D2PAK (5 Leads + Tab), TO-263-6, TO-263BA | Enable | 1.5 V | 30 µA | 27.03 °C/W | Positive | 40 mA | TO-263 (DDPAK-5) | 80 dB | 65 dB | 5.5 V | 125 °C | -40 °C | 3 A | 1 | Surface Mount | Over Current, Over Temperature, Short Circuit | 0.5 V |
Description
General part information
LP38843 Series
Linear Voltage Regulator IC Positive Fixed 1 Output 3A TO-220-5